US3228181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of yarns with varying twist
Assignee: British Nylon Spinners Ltd
•
Filing: 1964-03-09
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Granted: 1966-01-11
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Paterson William Gilchrist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:02
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/26; D02G3/28; D02G3/286; D02G1/00; D02G1/02; D02G1/04; D02G1/08; D02G1/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS FOR IMPARTING A VARYING TWIST TO A FILAMENTARY STRUCTURE COMPRISING THE STEPS OF (A) LINEARLY ADVANCING SAID STRUCTURE ALONG A PARTH, (B) INTERMITTENTLY CONTACTING SAID LINERALY ADVANCING STRUCTURE ON ONE SIDE THEREOF WITH AT LEAST ONE SURFACE MOVING ACROSS THE PARTH OF SAID STRUCTURE, SAID SURFACE OR SURFACES HAVING A HIGH COEFFICIENT OF FRICTION WITH SAID STRUCTURE, AND (C) WINDING UP SAID STRUCTURE WITH THE VARYING TWIST THEREBY IMPARTED TO IT.
Claim 2
Dependent Claim
73 words
A PROCESS FOR IMPARTING A VARYING TWIST TO A FILAMENTARY STRUCTURE COMPRISING THE STEPS OF (A) LINEARLY ADVANCING SAID STRUCTURE ALONG A PARTH, (B) INTERMITTENTLY CONTACTING SAID LINERALY ADVANCING STRUCTURE ON ONE SIDE THEREOF WITH AT LEAST ONE SURFACE MOVING ACROSS THE PARTH OF SAID STRUCTURE, SAID SURFACE OR SURFACES HAVING A HIGH COEFFICIENT OF FRICTION WITH SAID STRUCTURE, AND (C) WINDING UP SAID STRUCTURE WITH THE VARYING TWIST THEREBY IMPARTED TO IT.
References Cited (Backward Citations)
US2957302A
Cited
US2988867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |